133132331220 has 192 divisors, whose sum is σ = 431618643456. Its totient is φ = 30032363520.

The previous prime is 133132331209. The next prime is 133132331243. The reversal of 133132331220 is 22133231331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15191640 + ... + 15200400.

It is an arithmetic number, because the mean of its divisors is an integer number (2248013768).

Almost surely, 2^133132331220 is an apocalyptic number.

133132331220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133132331220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215809321728).

133132331220 is an abundant number, since it is smaller than the sum of its proper divisors (298486312236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133132331220 is a wasteful number, since it uses less digits than its factorization.

133132331220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9250 (or 9248 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 133132331220 its reverse (22133231331), we get a palindrome (155265562551).

The spelling of 133132331220 in words is "one hundred thirty-three billion, one hundred thirty-two million, three hundred thirty-one thousand, two hundred twenty".